1000123100120 has 32 divisors (see below), whose sum is σ = 2281102693920. Its totient is φ = 394569112320.

The previous prime is 1000123100113. The next prime is 1000123100147. The reversal of 1000123100120 is 210013210001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171251036 + ... + 171256875.

It is an arithmetic number, because the mean of its divisors is an integer number (71284459185).

Almost surely, 2^{1000123100120} is an apocalyptic number.

1000123100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000123100120 is an abundant number, since it is smaller than the sum of its proper divisors (1280979593800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000123100120 is a wasteful number, since it uses less digits than its factorization.

1000123100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342507995 (or 342507991 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1000123100120 its reverse (210013210001), we get a palindrome (1210136310121).

The spelling of 1000123100120 in words is "one trillion, one hundred twenty-three million, one hundred thousand, one hundred twenty".